Blogger to Yahoo to WordPress

This may be overly complicated, but I'm trying to switch my Blogger site with custom domain name to WordPress. I've already imported all the posts, comments and everything. That part was easy. What I'm having trouble with is trying to get the WordPress blog to publish on my Yahoo-hosted domain name. Right now, it's either still reading from Blogger, or not reading anything at all, depending on how much I screwed up.

I know I have to do something with the DNS or the CNAME record, but I don't know what any of that means. What do I change to what, and do I change it on Yahoo or on here? I want to eventually move away from Yahoo and host somewhere else, but...one thing at a time.